So, I like to use the Firefox Nightly builds on my machine. The other day I realized that it had been a while since I'd updated, so I went to install the latest FF Nightly code (to build from source with the assistance of the sardemff7 overlay's firefox-9999 ebuild), and everything looked good until I got to a certain point in the build process, at which point the build failed, but did not seem to throw any error. I did some Googling, but was unable to find anything relevant. Any ideas? Build log is here (click "View Raw"): https://gist.github.com/53e5cdade69cd83f77e9.

If you inspect .def files, do you see lots of comment lies (licensing and so on) starting with ';+#' instead of just '#'? If so, then you have identical problem to mine. This is wrong format for def file, it should be parsed a bit - my version includes instructions on how to, but parsing itself for some reason did not occur, so I had to do it manually